Some of these got really cheap, like without a full wash arm but with something that looked like a small lawn sprinkler that had suffered an amputation. It looked like it would throw water like the bow tie impeller with the angled slot or slit in each end of a pipe or tube that probably extended 3 inches at most from each side of the hub. The white plastic lid extended over the Unicouple, i.e. beyond the front of the cabinet. The bottom rack was bed of nails as for the wash arm machine, but the top rack was the U-shaped style from the impeller machines. The machine might have worked with the bottom rack from the impeller machines, but the bed of nails rack must have been impossible to load through the small center opening in the top rack. Finally there was no timer controlled dispenser, just one of those plastic half-funnels screwed to the front wall of the tank so there was no pre-rinse possible. It was embarrassing to see the GE badge on such a cheap POS that made you think of a Sears "nailed to the floor" model.
One of these was in a house on my paper route. The young couple wisely left it behind and the old window woman who moved in had no use for it, but showed it to me when I asked her if she liked having a dishwasher since it sat right inside the back door. I liked collecting at the back door since it usually gave me a chance to scope out the appliances. After she showed it to me, I realized it could not possibly work and agreed with her when she said that she could not push it to the sink and hook it up. Poor things--both her and the dishwasher.